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Otto Support - The Confused Deputy

Bishop Fox's otto-support CTF demonstrates confused deputy attacks against AI agents, where an agent reads attacker-controlled content (a poisoned support ticket, email, or calendar invite) and executes hidden instructions using its own legitimate privileges. The write-up reproduces the scenario via IDOR-based ticket poisoning and metadata service abuse to escalate into a support-agent role, referencing real-world cases like EchoLeak, ConfusedPilot, and Copilot calendar exploits, and proposes mitigations such as data/instruction separation, per-task tool registration, least privilege, human-in-the-loop, and egress controls. Details →

Agentic anarchy: Why using AI browsers just isn't worth the risk | news | SC Media

At Black Hat 2026, Zenity researchers Michael Bargury and Stav Cohen demonstrated prompt-injection ('persuasion') attacks against AI browsers including Perplexity Comet, Microsoft Edge with Copilot, Chrome with Gemini, the Anthropic Claude extension, and OpenAI's Atlas. Injections embedded in calendar invites, emails, and social posts led agents to take over a PC in seconds, steal 1Password credentials and recovery keys, send phishing email, exfiltrate files, delete AWS instances, and expose private GitHub repos; Perplexity has since fixed the local-file flaw. Details →

Impossible to hide secret ...: Uncovering Security and Privacy Issues in LLM-native IDEs

Researchers from York University and the University of Calgary analyzed 1.1 million Reddit posts (446 relevant posts, 6,000+ comments) to build a taxonomy of security and privacy issues in LLM-native IDEs (LIDEs) such as Cursor, GitHub Copilot, Claude Code, and OpenAI Codex. Their preprint finds that most issues stem from system-level design choices rather than the underlying models, including unauthorized file operations (43.1%), destructive actions like Claude Code running chmod without consent and Replit deleting a production database, operational safety failures, opaque data flows, and leakage of sensitive information via expanded context access. Details →

Plan, Wait, Harvest: Zero-Click Data Exfiltration In Agentic AI.

An article by Venkata Sai Kishore Modalavalasa demonstrates a reproducible zero-click data-exfiltration attack against multi-agent AI systems, where an attacker uploads a single poisoned document into the data plane and later a routine admin-triggered compliance review causes agents to silently email sensitive vendor data (banking details, risk assessments, internal notes) to an external address. The attack exploits trust relationships between agents and the lack of boundaries between data and instructions rather than any code-level CVE, and is walked through hands-on in a purpose-built lab environment. Details →
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